(Trading volumes) may double.Logical formLearned from2 sentences. Population may be doubled in some years.Logical formLearned from2 sentences. A number of (security personnel) may double at pickets.Logical formLearned from2 sentences. A country may double a gross domestic product.Logical formLearned from2 sentences. A country may double spending.Logical formLearned from2 sentences. (Steel prices) may double over some months.Logical formLearned from2 sentences. A person may double as a spokesman.Logical formLearned from2 sentences. A (support rate) may double to some percent.Logical formLearned from2 sentences. A turnover may double in a quarter.Logical formLearned from2 sentences. A proportion of migrants may double to some percent.Logical formLearned from2 sentences. A number of a surface may double in some years.Logical formLearned from2 sentences. A number of (entertainment workers) may double in a decade.Logical formLearned from2 sentences. A female may double partner of a country.Logical formLearned from2 sentences. Some airlines may double flights.Logical formLearned from2 sentences. A world-city may double in weeks.Logical formLearned from2 sentences.